For loop in python (or in general)

Question

Can somebody explain me how does for loop work step by step in layman language with practicle example...? Thank u in advance

Answer 1

Here is an explanation about for loops in python. https://code.sololearn.com/cu1c6tKg4ev1/?ref=app

Answer 2

• Looping in Python — https://treyhunner.com/2016/04/how-to-loop-with-indexes-in-python/

Answer 3

Munir Ahmed Yakin You summed it up nicely. To expand further, for loops are condensed while loops.
The parts of a while loop are simply:
1. code block: executed in each loop
2. condition: loop again if true
Generally speaking, any loop can repeatedly execute a "code block" multiple times as long as some conditional expression remains true.
Now let see this with a while loop:
------
while(condition is true)
run this
block of
code
---
Expanded C style:
------
int i = 0; //initialize counter
//condition: true until i is 10
while(i < 10) {
i++; //increment by 1
//run code block
} //10 times
---
Converted to for loop:
------
for(initializer; condition; increment)
run this
block of
code
---
Expanded C style:
------
/*
Combine parts from while loop:
- initialize counter
- condition: is true until 10
- increment by 1
*/
for(int i = 0; i < 10; i++) {
//run code block
} //10 times
---
See how these loops are essentially the same?
while( ... ) {...}
for( ; ... ; ) {...}

Answer 4

So what I understand is : for loop will run its code x times x being number mentioned in range , am I rite?

Answer 5

For loop is used to execute a block of code repeatedly, within the range that you have specified
for i in range(19):
print(i)
It will print numbers from 0 to 18
NOTE:Identation mark : at the end of the loop declaration is very very important
for i in range(5, 18):
print(i)
it will print numbers from
5 to 18
Note:If we want to print n numbers we have to specify range of n+1
for i in range(0, 13, 4)
print(i)
It will print 0 4 8 12
We can assign range here
for i in range(starting,range,particular range you want):

Answer 6

in python:
for i in range(10):
Print (i)
result : the code will print the number from zero : 9 in separate lines

Answer 7

in C++
int i;
for(i=0; i<=10;i++){
print(i)
}
Result : the code will print the numbers from zero : 10 in separate lines

Answer 8

Yes , the number of times is 10 but the loop start from 0:9
Munir Ahmed Yakin